88results about How to "Easy to prepare in batches" patented technology

The invention relates to a bipolar plate for a liquid flow energy storage battery and a preparation method. The bipolar plate employs a carbon plastic composite plate with a thickness of 0.5-5mm as a matrix material. Conducting layers with a thickness of 1-1000 microns are coated on the surface of one side or surfaces of two sides of the matrix. The bipolar plate combines advantages of the carbon plastic composite plate and a graphite plate, decreases the contact resistance between an electrode and the bipolar plate, and finally decreases the Ohm internal resistance of the liquid flow energy storage battery. The bipolar plate raises the energy efficiency and the voltage efficiency of the liquid flow energy storage battery, and therefore the working current density is increased, thus weight, volume and cost of a battery with the same output power are all decreased.

The invention relates to an assembled type support and protection structure based on an outer steel arch and an inner concrete plate. The assembled type support and protection structure comprises a steel arch and a concrete support, wherein the concrete support is of a multi-piece arced plate assembling structure; the steel arch is arranged on the outer side of the concrete support; the concrete support and the steel arch are fixed on surrounding rock of a roadway/tunnel through anchor rods. By adopting the composite support and protection structure provided by the invention, the reinforced steel concrete casting and maintenance time is saved on the basis that a relatively large bearing force is ensured, and the support and protection construction speed is greatly increased. By adopting the assembled type support and protection structure, a novel technical way is provided for support and protection of deep well roadways and soft rock roadways, and a novel support and protection methodis provided for the field of roadway/tunnel support and protection.

The invention discloses a micro annular resonant cavity-based self-locking dual-optical-frequency comb generation system and method, belongs to the field of an optical frequency comb generation system, and specifically relates to the micro annular resonant cavity-based dual-optical-frequency comb generation system and method. The system comprises an annular resonant cavity and a dual-optical-frequency comb separation system connected with the annular resonant cavity through polarization maintaining optical fibers; the annular resonant cavity comprises an optical amplifier, an optical isolator, a first polarization controller, a micro annular resonant cavity and an optical filter which are connected through the polarization maintaining optical fibers in the cavity; the dual-optical-frequency comb separation system comprises a polarization light beam splitter and a second polarization controller which are connected through the polarization maintaining optical fibers; and the micro annular resonant cavity is a nonlinear micro annular resonant cavity with four ports. By virtue of the asymmetry of the waveguide structure, the TE mode and the TM mode of the waveguide have different indexes of refraction; two modes can be excited at the same time to generate two sets of broadband optical frequency combs with different polarization directions and multiple frequencies; and by virtue of separation and polarization rotation of the cross-polarization dual-frequency comb, the homoclitic super-high multi-frequency broadband optical frequency comb can be obtained.

The invention discloses a flexible electricity generation power supply and a flexible display screen. The electricity generation power supply comprises a flexible substrate and multiple piezoelectric film electricity generation devices deposited on the flexible substrate, wherein each piezoelectric film electricity generation device comprises a lower electrode deposited on the flexible substrate, a flexible piezoelectric film deposited on the lower electrode, and an upper electrode deposited on the flexible piezoelectric film, and the upper electrode on each piezoelectric film electricity generation device is connected with the corresponding lower electrode in series. The flexible display screen comprises the flexible electricity generation power supply and multiple display units located on the flexible substrate, wherein the multiple display units are electrically connected with the flexible electricity generation power supply. The flexible electricity generation power supply solves the technical problem of flexible power supply of the flexible display screen, is matched with the flexible display screen, and can provide a usable power supply for the display screen in the absence of illumination.

The invention discloses a sandwich-type piezoelectric touch screen which comprises a substrate and an outer positioning frame for fixing the substrate. The reverse side of the substrate is sequentially provided with an upper flexible thin film, a sheet-type piezoelectric element and a lower flexible thin film; array-type thin film conductive circuits are arranged on the surfaces of the upper flexible thin film and the lower flexible thin film; an upper electrode and a lower electrode are respectively arranged on the upper and lower surfaces of the sheet-type piezoelectric element; and the piezoelectric element has high piezoelectric performance (particularly, the performance of currently common lead-containing piezoelectric ceramics is dozens of times higher than the performance of a piezoelectric thin film with the highest performance), however, the screen generates the small deformation by applying a small force to the screen so as to implement output of a large electric signal. The invention can well solve the problem of insufficient sensitivity of the piezoelectric touch screen. The sandwich-type piezoelectric touch screen disclosed by the invention not only has high sensitivity, but also has high stability and reliability. The piezoelectric touch screen has the characteristics of structural innovation, low manufacturing cost, excellent performance and the like.

The invention discloses a programming method of staged electronic building blocks, comprising the steps of (1) manufacturing electronic building block modules having different basic functions and a basic circuit; electrically connecting the electronic building block modules and two preset electric connections of the basic circuit; (2) manufacturing branch modules having a built-in branch circuit and a different circuit adjusting function; (3) cascading the electronic building block modules to form the building block combination, and mutually connecting the electric connections of the electronic building block modules so as to form a building block combination basic function circuit; (4) selecting the branch modules and the multiple electronic building block modules to carry out cascading,forming an electronic building block combination circuit having adjusting branches; (5) connecting the cascaded electronic building block modules to the branch modules so as to form an electronic building block combination circuit having adjusting branches, and connecting the electronic building block combination circuit to the building block combination basic function circuit so as to form an electronic building block combination circuit having adjusting branches. The invention also discloses electronic building blocks and their combination.

The invention relates to a beam shaping device. The beam shaping device comprises beam shaping units which are distributed in an array mode, wherein each beam shaping unit comprises a plurality of phase sub units; and each beam shaping unit can independently realize beam shaping. The beam shaping device is used for acquiring device phase distribution data by a phase inversion algorithm according to the requirements of beam far fields on light intensity distribution, and an acquired phase distribution form is formed on the device by an etching method or an impressing method, so that the beam shaping device which can realize any shapes or meets the different requirements on the light intensity distribution, particularly, the beam shaping device capable of acquiring uniform light intensity distribution can be constructed. The beam shaping device can be used for transformation and shaping of light source outgoing beams of hot light sources, solid lasers, excimer lasers, semiconductor lasers and the like.

The invention discloses a vinyl-thiol polymeric material used for preparing a micro-fluidic control chip. The material is obtained by polymerization utilizing a nonideal stoichiometric ratio. The invention in particular discloses a preparation method of the polymeric material and a method for carrying out internal structure modification and hydrophilic or hydrophobic surface modification on the material and further provides a method for preparing the micro-fluidic control chip by utilizing the polymeric material and the chip. The preparation method provided by the invention is short in reaction time and easily achieves batch preparation. The obtained material is simple and practicable in hydrophilic or hydrophobic surface modification method, has good stability after modification and has high practical value.

The invention provides a morphology-adjustable molybdenum disulfide preparation method and relates to a method for preparing morphology-adjustable molybdenum disulfide through a mixed solvent hot method. The preparation method comprises fully stirring ammonium molybdate and thiourea as initial reactants through a magnetic stirrer through adjustment of a ratio of ethanol to deionized water in a mixed solvent until the drugs are fully dissolved so that a uniform, stable and transparent solution is obtained, pouring the solution into the lining of a polytetrafluoroethylene reactor, putting the polytetrafluoroethylene reactor into a stainless steel-made high pressure reaction vessel, carrying out a solvent heat reaction process under control of a reaction temperature and reaction time, cooling the product to the room temperature in air, collecting the samples, and carrying out centrifugation, washing and drying to obtain morphology-adjustable molybdenum disulfide. At a certain temperature, in a certain reaction time, molybdenum disulfide products with different morphologies are obtained through control of reaction conditions. The molybdenum disulfide products with different morphologies can effectively adjust catalysis performances. The preparation method has the advantages of simple processes, good product uniformity and batch production feasibility.

The invention relates to a weldable bipolar plate for a flow battery and preparation and application thereof. The weldable bipolar plate comprises a main body layer consisting of high-density polyethylene, carbon nanotubes, a coupling agent and a lubricant, and the areas, in contact with the electrode, in the middle parts of the upper and lower surfaces of the main body layer are provided with high-conductivity coatings. The area, in contact with the electrode material, on the bipolar plate has relatively high conductivity and low contact resistance, so that the ohmic polarization of the battery is reduced, and the voltage efficiency of the battery is improved; and the contact area with the electrode frame has relatively high polymer content, so that enough high welding strength can be ensured during welding, and the sealing reliability of a galvanic pile is ensured.

The invention mainly relates to the technical field of food processing and discloses a preparation method of candied pericarpium trichosanthi, comprising the following steps: selecting, enzymolysis, drying, tumbling, sugaring, freeze drying and packaging. According to the preparation method for the candied pericarpium trichosanthi, the method is simple and convenient for batch preparation, the obtained candied pericarpium trichosanthi has light yellow color, sweet and sour taste and soft chewiness, the deep processing methods of the pericarpium trichosanthi are increased, and the economic income is increased by 13.7%. Choosing the unripe fructus trichosanthis to prepare candied fruits can increase the thickness of the pericarpium trichosanthi and reduce the nutrient consumption of the fructus trichosanthis, is conducive to the growth of the remaining fructus trichosanthis, makes the fructus trichosanthis grow big and plump and improves the quality of the fructus trichosanthis. Enzymolysis of the pericarpium trichosanthi can destroy macromolecular structure of the pericarpium trichosanthi, increase the softness and tenderness, protect the gastrointestinal function and facilitate the digestion and absorption. Drying the pericarpium trichosanthi after the enzymolysis facilitates the absorption of sugaring liquid, comprising the following steps: high temperature drying first which can reduce water content rapidly and improve efficiency, and drying at intermediate temperature which avoids the cracks caused by rapid loss of water, and then drying at low temperature which keeps the softness and tenderness of the pericarpium trichosanthi.

The invention relates to a hydrophobic inorganic porous membrane and a preparation method thereof. The hydrophobic inorganic porous membrane is characterized in that the hydrophobic inorganic porous membrane is composed of five layers, i.e., a support body, transition layers located at two sides of the support body and two outmost film layers; and material powders of one of the film layers, one of the transition layers, the support body, the other of the transition layers and the other of the film layers are successively placed in a die to prepare a five-layer green body and then high-temperature sintering and molding are carried out so as to obtain the hydrophobic inorganic porous membrane. The preparation method for the hydrophobic inorganic porous membrane is simple and has low preparation cost; the prepared hydrophobic inorganic porous membrane has resistance to organic solvents, high heat stability, high mechanical strength and long service cycle; and the multilayer structure can overcome the problem of unmatching between thermal expansion properties of a support body and a film layer in a conventional single-layer structure and enhances bonding between the support body and the film layers. The hydrophobic inorganic porous membrane prepared in the invention has a fast oil infiltration speed and is capable of giving priority to permeation of oil (including emulsified oil) during filtration of oil-water mixtures and oil-water emulsion (or emulsified oil-water).

The invention discloses a graphitized carbon layer confinement multi-component platinum alloy catalyst and a preparation method thereof. The method comprises the following steps: 1, uniformly mixing acarbon source, a nitrogen source and a transition metal M precursor in a first solvent, drying and grinding to obtain a multi-component precursor; 2, heating the multi-component precursor to obtain atransition metal and a nitrogen-doped M-NC carrier, and continuously introducing protective gas in the heating process; 3, mixing the M-NC carrier with polyol, adding a platinum source precursor, andfully reacting to obtain Pt/M-NC in an initial deposition state; and 4, heating the Pt/M-NC in a reducing atmosphere at a temperature higher than 600 DEG C to obtain PtM/NC@C. According to the invention, firstly, the transition metal M and a nitrogen-doped M-NC carbon material are synthesized; polyhydric alcohol is adopted as a dispersing agent and a reducing agent in the precious metal reductionprocess, the size and distribution uniformity of precious metal nanoparticles are remarkably improved, the phenomena of nanoparticle agglomeration, sintering and the like in the high-temperature alloying process are greatly relieved, and the stability of the alloy catalyst is improved.

The invention, which belongs to the field of integrated photonics and silicon-based photonics, discloses a structural design of a novel graphene light modulator. The novel graphene optical modulator structure comprises a substrate layer, an artificial metamaterial waveguide layer, a double-layer graphene layer, an ultrathin optical waveguide layer, a low-refractive-index cover layer and an electrode.The artificial metamaterial waveguide layer is formed by alternately arranging high-refractive-index materials and low-refractive-index materials; and the double-layer graphene layer is composed oftwo layers of graphene and a dielectric filling layer. According to the invention, the artificial metamaterial structure is used as a part of the optical waveguide structure and thus the distributionof an optical field can be effectively adjusted and the interaction between graphene and light can be enhanced, so that the modulation depth and modulation efficiency are improved; meanwhile, the interference between devices is reduced by controlling evanescent waves, and the integration density of the devices is improved. The modulator has the advantages of large working bandwidth, high modulation rate, compact structure and the like, and an effective solution is provided for constructing a large-bandwidth, high-density integrated and high-speed system on chip.

The invention provides a method for continuously preparing graphene powder in bulk. The method comprises the steps that S1, inert gas is introduced into a microwave plasma chemical vapor deposition system so as to generate plasmas; S2, a carbon source is introduced into the microwave plasma chemical vapor deposition system for the vapor phase growth of the graphene powder; S3, the carbon source stops from being introduced, an etching agent is introduced to etch graphene remaining in the microwave plasma chemical vapor deposition system; S4, the steps S1 to S3 are repeated, so that continuous in-bulk preparation of the graphene powder is achieved. By means of the method, long-time continuous preparation of the graphene powder can be achieved, the obtained graphene powder is high in quality,high in purity and low in oxygen content, and all the graphene powder is laminar graphene with the size lower than 300 nm, continuous in-bulk preparation of the graphene sheets is facilitated, and the method is great in application prospect.

The invention provides a preparation method and application of a hexagonal hollow tubular Bi2O(OH)2SO4 photocatalyst and relates to the field of novel catalysts. The preparation method comprises the following steps of dissolving bismuth nitrate pentahydrate and a sulfocompound in water to obtain a mixed solution; placing the mixed solution into a high-pressure reactor kettle, performing sealing at the temperature of 110-180 DEG C for 12-24 hours and performing cooling the solution to be at the room temperature; performing centrifugal precipitation and drying on the solution in the high-pressure reactor kettle to obtain the hexagonal hollow tubular Bi2O(OH)2SO4 photocatalyst. The preparation method of the hexagonal hollow tubular Bi2O(OH)2SO4 photocatalyst is simple and easy to perform, and the hexagonal hollow tubular Bi2O(OH)2SO4 photocatalyst can be prepared in a batch mode and is novel in appearance, in a shape of a hexagonal hollow tube, high in catalytic activity and capable of being applied to degradation of catalyzed organic pollutant substance.

The invention discloses a modular bionic quadruped robot. The modular bionic quadruped robot comprises four leg joints and at least one body joint. The leg joints have three freedom degrees, rolling and pitching of drive leg mechanisms are achieved through differential gear trains, and bending and stretching of knee joints of the drive leg mechanisms are achieved through revolute pairs. The body joints have one freedom degree, the joints are driven by motors to rotate, rotary motion of the body joints is converted into compression and looseness of linear springs through cylindrical cam mechanisms, joint kinetic energy generated when the body joints swing is converted into elastic potential energy, and the elastic potential energy is released when the body joints are straightened in order to supplement kinetic energy. The body joints can be increased according to requirements, the robot is turned into a multi-spine joint robot, the leg joints can be adjusted in order to increase the width of a machine body and reduce the height, the advantages of flexibility and stability are achieved, and the kinematic and dynamic characteristics of tetrapods are simulated to the maximum degree.

The invention discloses a bipolar plate for flow batteries as well as preparation and an application of the bipolar plate. The bipolar plate is a carbon-plastic composite plate prepared from, in percentage by mass, 25%-35% of high-density polyethylene with the melt index being 2-10, 65%-75% of conducive filler and 0-2% of a lubricant or prepared from 25%-35% of high-density polyethylene with the melt index being 2-10 and 65%-75% of conductive filler. The bipolar plate solves the problems of poor halogen corrosion resistance and poor toughness of carbon-plastic composite bipolar plates taking polypropylene as a matrix as well as low conductivity of carbon-plastic composite bipolar plates, thus, the bipolar plate has high conductivity and good corrosion resistance and can reduce ohm internalresistance of flow energy storage batteries and prolong the service life of piles.

The invention discloses a joint extension rehabilitation training system based on pain feedback control and an achieving method of the joint extension rehabilitation training system. The joint extension rehabilitation training system comprises a training protective tool body and an angle adjusting device arranged on the training protective tool body, and further comprises a protective tool length adjusting device arranged on the training protective tool body, and a pain managing terminal. The pain managing terminal comprises a pressure processing module connected with the training protective tool body through the pressure sensor, a processor connected with the pressure processing module and provided with a touch screen, a pain input module, a training plan input module and an adjusting prompt interaction module, and the pain input module, the training plan input module and the adjusting prompt interaction module are arranged in the processor. The joint extension rehabilitation training system is reasonable in structure and convenient to operate, the length of the training protective tool can be adjusted according to different people, the training requirements of patients of different ages can be met, a doctor can know the pain situation of the patients in the training process in real time, and corresponding adjustment is made. According to the joint extension rehabilitation training system, the effect of rehabilitation training is greatly improved, and the rehabilitation period is effectively shortened.